我需要使用“document.getElementById”吗？

Question

I still haven't the got this code to work correctly in ie9. It works ok in Firefox though. Do I have to use "document.getElementById" for it to work in ie9? If so, where would it fit in?

function dbasetype(){

var dbasedata = document.forms[0]._dbase_name.value;
        dbasedata = dbasedata.toUpperCase();
        dbasedata = dbasedata.replace(/\s/g, "");

var _area = document.forms[0]._area;        
var _dbase_name = document.forms[0]._dbase_name;

if  (dbasedata.indexOf("UK_CONTACTS")==-1) {
        _area.value = _dbase_name.value;            
     }  else { setarea(); } 
     }

EDIT The above code updates a field (that controls the access for individuals) in a database when the save button is clicked. It works ok in Firefox as I said previously but when this runs in ie9 the field that is supposed to be updated and is replaced with a blank and then the user loses access to the contact record.

Answer 1

Your problem is that the IE has the stupid property that every ID is also a global (readonly) object. You just have to rename your variable in your JavaScript like this:

function dbasetype() {
  var dbasedata = document.forms[0]._dbase_name.value;
  dbasedata = dbasedata.toUpperCase().replace(/\s/g, "");

  var x_area = document.forms[0]._area;        
  var x_dbase_name = document.forms[0]._dbase_name;

  if(dbasedata.indexOf("UK_CONTACTS")==-1) {
    x_area.value = x_dbase_name.value;            
  } else {
    setarea();
  } 
}